8026402409 has 2 divisors, whose sum is σ = 8026402410. Its totient is φ = 8026402408.

The previous prime is 8026402399. The next prime is 8026402481. The reversal of 8026402409 is 9042046208.

8026402409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6950890384 + 1075512025 = 83372^2 + 32795^2 .

It is a cyclic number.

It is not a de Polignac number, because 8026402409 - 2²⁴ = 8009625193 is a prime.

It is not a weakly prime, because it can be changed into another prime (8026402499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4013201204 + 4013201205.

It is an arithmetic number, because the mean of its divisors is an integer number (4013201205).

Almost surely, 2^8026402409 is an apocalyptic number.

It is an amenable number.

8026402409 is a deficient number, since it is larger than the sum of its proper divisors (1).

8026402409 is an equidigital number, since it uses as much as digits as its factorization.

8026402409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 8026402409 is about 89590.1914776389. The cubic root of 8026402409 is about 2002.1977847365.

The spelling of 8026402409 in words is "eight billion, twenty-six million, four hundred two thousand, four hundred nine".